./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix014_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix014_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fc83f7400faec1e297c0070148ef6e08fc24a46b81d9a9e52a0ee501a0da326 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:11:09,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:11:09,237 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:11:09,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:11:09,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:11:09,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:11:09,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:11:09,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:11:09,263 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:11:09,265 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:11:09,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:11:09,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:11:09,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:11:09,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:11:09,266 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:11:09,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:11:09,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:11:09,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:11:09,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:11:09,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:11:09,269 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:11:09,269 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:11:09,269 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:11:09,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:11:09,270 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:11:09,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:11:09,270 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:11:09,270 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:11:09,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:11:09,270 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:11:09,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:11:09,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:11:09,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:11:09,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:11:09,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:11:09,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:11:09,271 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:11:09,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:11:09,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:11:09,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:11:09,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:11:09,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:11:09,272 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fc83f7400faec1e297c0070148ef6e08fc24a46b81d9a9e52a0ee501a0da326 [2024-11-17 03:11:09,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:11:09,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:11:09,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:11:09,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:11:09,493 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:11:09,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix014_tso.oepc.i [2024-11-17 03:11:10,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:11:10,893 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:11:10,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014_tso.oepc.i [2024-11-17 03:11:10,917 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c7bb671/2a102f4d2347488eb22dfd3d990e56b2/FLAG15a1f4ea3 [2024-11-17 03:11:10,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c7bb671/2a102f4d2347488eb22dfd3d990e56b2 [2024-11-17 03:11:10,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:11:10,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:11:10,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:11:10,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:11:10,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:11:10,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:11:10" (1/1) ... [2024-11-17 03:11:10,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df595df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:10, skipping insertion in model container [2024-11-17 03:11:10,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:11:10" (1/1) ... [2024-11-17 03:11:10,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:11:11,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:11:11,308 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:11:11,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:11:11,434 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:11:11,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11 WrapperNode [2024-11-17 03:11:11,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:11:11,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:11:11,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:11:11,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:11:11,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,494 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 258 [2024-11-17 03:11:11,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:11:11,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:11:11,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:11:11,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:11:11,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,525 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 03:11:11,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,534 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:11:11,541 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:11:11,542 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:11:11,542 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:11:11,545 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (1/1) ... [2024-11-17 03:11:11,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:11:11,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:11:11,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:11:11,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:11:11,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:11:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:11:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:11:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:11:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:11:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:11:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:11:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:11:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:11:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:11:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:11:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:11:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:11:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:11:11,622 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:11:11,759 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:11:11,760 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:11:12,159 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:11:12,163 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:11:12,438 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:11:12,438 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:11:12,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:11:12 BoogieIcfgContainer [2024-11-17 03:11:12,439 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:11:12,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:11:12,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:11:12,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:11:12,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:11:10" (1/3) ... [2024-11-17 03:11:12,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c6054d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:11:12, skipping insertion in model container [2024-11-17 03:11:12,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:11" (2/3) ... [2024-11-17 03:11:12,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c6054d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:11:12, skipping insertion in model container [2024-11-17 03:11:12,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:11:12" (3/3) ... [2024-11-17 03:11:12,451 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_tso.oepc.i [2024-11-17 03:11:12,465 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:11:12,465 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-17 03:11:12,465 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:11:12,519 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:11:12,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 56 transitions, 128 flow [2024-11-17 03:11:12,592 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2024-11-17 03:11:12,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:11:12,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 52 events. 2/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-11-17 03:11:12,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 56 transitions, 128 flow [2024-11-17 03:11:12,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 52 transitions, 116 flow [2024-11-17 03:11:12,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:11:12,616 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4381a0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:11:12,617 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-17 03:11:12,623 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:11:12,623 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-17 03:11:12,623 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:11:12,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:12,624 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:11:12,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-17 03:11:12,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:12,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2057546166, now seen corresponding path program 1 times [2024-11-17 03:11:12,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:12,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099475979] [2024-11-17 03:11:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:12,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:13,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:13,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099475979] [2024-11-17 03:11:13,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099475979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:13,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:13,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:11:13,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263527092] [2024-11-17 03:11:13,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:13,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:11:13,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:13,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:11:13,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:11:13,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:11:13,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:13,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:13,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:11:13,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:21,982 INFO L124 PetriNetUnfolderBase]: 69663/92041 cut-off events. [2024-11-17 03:11:21,982 INFO L125 PetriNetUnfolderBase]: For 326/326 co-relation queries the response was YES. [2024-11-17 03:11:22,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183661 conditions, 92041 events. 69663/92041 cut-off events. For 326/326 co-relation queries the response was YES. Maximal size of possible extension queue 2622. Compared 580124 event pairs, 7359 based on Foata normal form. 4116/93081 useless extension candidates. Maximal degree in co-relation 183649. Up to 80521 conditions per place. [2024-11-17 03:11:22,455 INFO L140 encePairwiseOnDemand]: 51/56 looper letters, 68 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2024-11-17 03:11:22,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 78 transitions, 314 flow [2024-11-17 03:11:22,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:11:22,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:11:22,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-11-17 03:11:22,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6607142857142857 [2024-11-17 03:11:22,468 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 116 flow. Second operand 3 states and 111 transitions. [2024-11-17 03:11:22,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 78 transitions, 314 flow [2024-11-17 03:11:22,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 78 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:11:22,477 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 108 flow [2024-11-17 03:11:22,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-17 03:11:22,482 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -4 predicate places. [2024-11-17 03:11:22,483 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 108 flow [2024-11-17 03:11:22,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:22,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:22,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:22,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:11:22,484 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-17 03:11:22,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:22,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1615497060, now seen corresponding path program 1 times [2024-11-17 03:11:22,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:22,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119199755] [2024-11-17 03:11:22,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:22,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:22,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:22,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119199755] [2024-11-17 03:11:22,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119199755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:22,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:22,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:11:22,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452975407] [2024-11-17 03:11:22,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:22,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:11:22,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:22,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:11:22,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:11:22,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:11:22,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:22,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:22,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:11:22,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:29,599 INFO L124 PetriNetUnfolderBase]: 59301/78658 cut-off events. [2024-11-17 03:11:29,600 INFO L125 PetriNetUnfolderBase]: For 2604/2604 co-relation queries the response was YES. [2024-11-17 03:11:29,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159410 conditions, 78658 events. 59301/78658 cut-off events. For 2604/2604 co-relation queries the response was YES. Maximal size of possible extension queue 2140. Compared 478642 event pairs, 7491 based on Foata normal form. 0/78597 useless extension candidates. Maximal degree in co-relation 159400. Up to 66931 conditions per place. [2024-11-17 03:11:30,006 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2024-11-17 03:11:30,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 300 flow [2024-11-17 03:11:30,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:11:30,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:11:30,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-17 03:11:30,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-11-17 03:11:30,009 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 108 flow. Second operand 3 states and 104 transitions. [2024-11-17 03:11:30,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 75 transitions, 300 flow [2024-11-17 03:11:30,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:11:30,013 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-17 03:11:30,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-17 03:11:30,014 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -5 predicate places. [2024-11-17 03:11:30,014 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-17 03:11:30,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:30,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:30,015 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:30,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:11:30,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-17 03:11:30,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:30,016 INFO L85 PathProgramCache]: Analyzing trace with hash 681830213, now seen corresponding path program 1 times [2024-11-17 03:11:30,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:30,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430547645] [2024-11-17 03:11:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:30,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:30,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:30,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:30,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430547645] [2024-11-17 03:11:30,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430547645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:30,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:30,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:11:30,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740046844] [2024-11-17 03:11:30,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:30,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:11:30,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:30,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:11:30,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:11:30,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2024-11-17 03:11:30,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:30,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:30,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2024-11-17 03:11:30,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:36,659 INFO L124 PetriNetUnfolderBase]: 53337/74893 cut-off events. [2024-11-17 03:11:36,660 INFO L125 PetriNetUnfolderBase]: For 2730/2730 co-relation queries the response was YES. [2024-11-17 03:11:36,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148043 conditions, 74893 events. 53337/74893 cut-off events. For 2730/2730 co-relation queries the response was YES. Maximal size of possible extension queue 2162. Compared 498471 event pairs, 53337 based on Foata normal form. 1764/76378 useless extension candidates. Maximal degree in co-relation 148033. Up to 69814 conditions per place. [2024-11-17 03:11:37,196 INFO L140 encePairwiseOnDemand]: 54/56 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-17 03:11:37,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2024-11-17 03:11:37,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:11:37,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:11:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-17 03:11:37,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-17 03:11:37,201 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2024-11-17 03:11:37,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2024-11-17 03:11:37,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:11:37,206 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-17 03:11:37,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-17 03:11:37,207 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -7 predicate places. [2024-11-17 03:11:37,207 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-17 03:11:37,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:37,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:37,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:37,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:11:37,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-17 03:11:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 681830910, now seen corresponding path program 1 times [2024-11-17 03:11:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:37,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398882772] [2024-11-17 03:11:37,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:37,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:37,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398882772] [2024-11-17 03:11:37,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398882772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:37,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:37,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:11:37,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317892296] [2024-11-17 03:11:37,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:37,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:11:37,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:37,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:11:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:11:37,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-17 03:11:37,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:37,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:37,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-17 03:11:37,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand